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Back
The motor nerve supply to the four muscles in the suboccipital triangle emerges:
A. from a foramen in the occipital bone.
B. between the occipital bone and the atlas.
C. between the atlas and the axis.
D. between the axis and C3.
E. between C3 and C4.
The unique feature of the 1st cervical vertebra is that it has no
A. superior articular facet.
B. transverse foramen.
C. body.
D. transverse processes.
E. posterior tubercles.
The arachnoid layer of the meninges
A. extends laterally as the denticulate ligament.
B. is a thick, heavy layer of connective tissue.
C. extends caudally as the filum terminale.
D. extends to vertebral level S-2.
E. is separated from the dura mater by cerebrospinal fluid.
A patient's inability to raise the right arm above a horizontal plane could indicate a deficit in the
A. thoracodorsal nerve.
B. levator scapulae muscle.
C. dorsal scapular nerve.
D. spinal accessory nerve.
E. dorsal rami of C5-7.
The subarachnoid space of the lumbar cistern in the adult ends at vertebral levels
A. L-1
B. L-3
C. L-4
D. L-5
E. S-2
A unique feature of the atlas (1st cervical vertebra) is that it has no
A. superior articular facet.
B. transverse foramen (foramen transversarium).
C. body.
D. transverse processes.
E. posterior tubercle.
Each of the following muscles attaches to a part of an upper thoracic vertebra (T3 or T4) EXCEPT the
A. semispinalis.
B. trapezius.
C. long rotators.
D. levator scapulae.
E. rhomboideus major.
A lesion of a dorsal primary ramus could affect all of the following muscles EXCEPT the
A. iliocostalis.
B. external intercostal.
C. semispinalis.
D. obliquus capitis inferior.
E. splenius.
All of the following components of the 7th thoracic nerve contain autonomic fibers EXCEPT the
A. ventral root.
B. ventral primary ramus.
C. dorsal root.
D. dorsal primary ramus.
E. white ramus communicans.
The back muscle which contributes to the two triangles of the back (lumbar and auscultation) is the
A. trapezius.
B. splenius capitis muscle.
C. latissimus dorsi muscle.
D. serratus anterior muscle.
E. iliocostalis.
A ligament which forms a portion of the anterior wall of the vertebral canal is the
A. interspinous.
B. anterior longitudinal.
C. posterior longitudinal.
D. ligamentum flavum.
E. supraspinous.
The greater occipital nerve
A. has sensory and motor fibers.
B. passes inferior to the inferior oblique muscle.
C. has no sensory fibers.
D. areises from the ventral ramus of C-2.
E. pierces the semispinalis cervicis muscle before becoming cutaneous.
Parasympathetic nerve fibers
A. function primarily in emergencies.
B. arise from the ventral horn of the spinal cord.
C. have postganglionic nerve cell bodies located in dorsal root ganglion.
D. have preganglionic fibers that traverse the white rami communicantes.
E. have preganglionic cell bodies in the brain stem.
A specialization of the spinal pia mater includes the
A. coccygeal ligament.
B. ligamentum flavum.
C. dentculate ligaments.
D. anterior longitudinal ligament.
E. cauda equina.
Which of the following nerves is composed of fibers that originate from dorsal rami?
A. Thoracodorsal nerve
B. Greater occipital nerve
C. Spinal accessory nerve
D. Dorsal scapular nerve
E. Medial pectoral nerve
At a tennis tournament in Germany, Monica Seles was stabbed in the back just medial to the base of the spine of the scapula. Structures which could have been damaged include all the following EXCEPT the
A. latissimus dorsi muscle.
B. serratus posterior superior muscle.
C. lognissimus muscle.
D. Trapezius muscle.
E. rhomboideus muscle.
A 35-year-old male came into the emergency room with a bullet that passed through his left nipple and lodged in his lung. The bullet passed through all of the following structures EXCEPT the
A. 4th intercostal sapce.
B. pectoralis major muscle.
C. external intercostal muscle.
D. internal intercostal membrane.
During a hunting accident, a man was wounded by a shotgun. A pellet lodged in his neck and injured a nerve as it travels between the posterior arch of the atlas and the posterior area of the occiptal bone. This nerve lesion could result in
A. paralysis of the first intercostal muscle.
B. loss of cutaneous sensation to the posterior part of the scalp.
C. paralysis of the rectus capitus posterior major muscle.
D. loss of cutaneous sensation to the posteriorpart of the neck.
E. paralysis of the longissimus cervicis muscle.
During a surgical procedure to relieve pain, a neurosurgeon implanted a device along the surface of the left side of the spinal cord. To place the device along the dorsal surface of the L2 level of the spinal cord, she made an incision in the skin
A. at the level of the L2 vertebra.
B. above the level of the L2 vertebra.
C. below the level of the L2 vetebra.
During surgery to remove a large bone tumor (sarcoma) fromthe head and neck of the 3rd rib, the surgeon was forced to cut the ventralprimary rami of the 2nd, 3rd, and 4th thoracic nerves. After the surgery, the patient probably had
A. paralysis of a portion of the longissimus thoracic muscle.
B. paralysis of the trapezius muscle.
C. lossof the perception of temperature of the skin covering the semispinalis cervicis muscle.
D. loss ofthe perception of pain of the skin covering most ofthe 3rd intercostal interspace.
A tumor that grows within anintervertebral foramen in the thoracic part of the vertebral column would MOST LIKELY compress
A. the anterior spinal artery.
B. the posterior spinal artery.
C. a dorsal root ganglion.
D. a gray ramus communicantes.
E. a white ramus communicantes.
A patient comes to see you complaining of back pain when she adducts or extends her right arm. During your physical examination of her back you palpate the latissismus dorsi muscle and remind yourself that all the following statements about this muscle are correct EXCEPT that it is
A. a medial rotator of the arm.
B. innervated by the thoracodorsal nerve.
C. attached to the intertubercular groove of the humerus.
D. deep to the serratus posterior inferior muscle.
E. superficial to the transversospinalis group fo muscles
During a physical examination of the spin and extremities, your patient complains of tenderness as your palpate the skin over his upper thoracic spinous processes. This tenderness may be the result of inflammation of the attachments of all the following muscles EXCEPT the
A. semispinalis.
B. trapezius.
C. long rotators.
D. levator scapulae.
E. rhomboid major.
A structure most likely to be compressed by a tumor in the suboccipital triangle is the
A. vertebral artery.
B. lesser occipital nerve.
C. spinal accessory nerve.
D. occipital artery.
E. thoracodorsal nerve.
The radiologist diagnosed from X-rays that a patient had lordosis of the vertebral column. This condition is characterized by an increased curvature of the vertebral column that is
A. convex posteriorly.
B. convex anteriorly.
C. convex to the side.
D. concave laterally.
E. concave anteriorly.
A needle used to inject materials into the lumbar cistern pierces the skin of a patient inferior to the spinous process of L-4. The needle would penetrate all of the following structures EXCEPT the
A. interspinous ligament.
B. dura mater.
C. supraspinous ligament.
D. arachnoid membrane.
E. posterior longitudinal ligament.